Sub zero 532 ice maker

When my repair tech came out, he showed me that the fill tube sometimes retracts toward the rear of the freezer. He simply pulled it forward with a pair of needle nose pliers until it rested in the delivery reservoir. This placement allows the detector to know when the tray is full and shut off; thus not overfilling the freezing tray and/or splashing additional water onto the freezer wall and into the ice cube drawer.

My sub-zero 532 constantly stops making ice because the fill tube gets frozen solid with ice not allowing water to enter the ice tray. I periodically ( every month), remove everything from the freezer, warm the tube till the ice thaws and flows out, then replace everything and it works for a month or so. This months Popular Mechanics discusses a similar issue and suggests the water solenoid has a slow leak, thus allowing water to "drip". I can see how slow moving drips of water can freeze up the fill tube. So I am now looking for the correct solenoid water valve an hope this will do the job.

I ordered a replacement ice maker from a local appliance store and it cost $259. There are 3-screws that hold the ice maker in place and an additional 2 screws that hold the lever arm in place. Once you've removed the screws, pull the unit forward and remove the cover on the left end of the unit. Pull on the wire harness while pushing down on the plastic latch that holds the harness in place (you can only access this latch by removing the cover on the left end of the unit). Install in reverse order. Took me about 15 min to replace. Took me about another 4 hours to realize that it wasn't working b/c the ice-maker switch had been turned off!